Inner diameter: approximately 16 cm Beryl: approximately 14.6 mm - 14.8 mm Rutile quartz: approximately 15.2 mm Please allow for some margin of error. It has a color that seems to be a mix of heliodor yellow and green beryl (green aquamarine). High-quality rutile with thick, glittering needles is used as a focal point in highly transparent crystal. Types of Beryl: Emerald: Beryl that shines green due to chromium and vanadium. Aquamarine: Beryl that shines blue due to iron. Morganite: Beryl that shines pink due to manganese. Heliodor: Beryl that shines yellow due to iron oxide and uranium. Goshenite: Colorless beryl that does not contain coloring components. The name changes depending on the color. As it is a natural stone, there may be cracks, inclusions, natural dents, black spots, color unevenness, fine scratches, etc. Natural stone Natural stone bracelet Design bracelet Beryl Heliodor Aquamarine Green beryl Power stone